So this is the meat of the question: Can Foo.Bar ever return null?To clarify, can \'_bar\' be set to null after it\'s evaluated as non-null and before it\'s value is returned?
I have a requirement to create some xml structs (to borrow a C-phrase) in sql-server-2005. In order to do this, I change all my values to varchar. The problem arises when I want to make USE of these v
Greetings, Here is my problem. I need to get data from multiple rows and return them as a single result in a larger query.
In advance, I would like to say thanks for the help. This is a great community and I\'ve found many programming answers here.
I need to create a view from several tables. One of the columns in the view will have to be composed out of a number of rows from one of the table as a string with comma-separated values.
I want to get the latest MainNumber, Serial, BarType and Notes for a given MainNumber, if they exist. Note that BarType is stored in a lookup table and referenced with BarID.
How do I fix 开发者_JAVA技巧up this part of my stored procedure? The select will either return 1, 0, or null. If the select returns 1 or 0, I want @override to be set to that value. If it returns nul
Given a list of dates 12/07/2010 13/07/2010 14/07/2010 15/07/2010 12/08/2010 13/08/2010 14/08/2010 15/08/2010
I want to write the following query as a Hibernate Criteria query: select to_char(nvl(ol.updated_datetime, ol.created_datetime), \'dd/mm/yyyy\'), sum(discount_price)
Is there a Java equivalent of SQL\'s COALESCE function? That is, is there any way to return the first non-null value of several variables?
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